Hmm, sounds like that copper that done me, has done you, but mine was in St.Kilda
He got me for ride height which was too low, padded steering, needed wheel alignment (really mr copper but my tyres are still roadworthy, does it need a wash too???)
What i did, get a roadworthy, they will check your road height (adjust up your Teins) and tyres and all the other stuff. You should get a wheel alignment if your getting new tyres anyway. I didnt touch my wheel alignment or tyres. Now with the steering wheel, i left mine and no one said a word, as long as i gave the roadworthy to the EPA it was ok. Now the epa will look at your bleed valve and do i noise/emission test. With the bleed valve once i hid it and got away with it and the second time i took it off and ran the hose directly to the actuator. As you have a GTR they allready come with a FMIC so shouldnt pods be ok?? You are allowed only one intake mod, either pod or cooler not both but as a GTR is standard with a FMIC, a pod should be ok, correct me if im wrong!!
With a T78, have you got an external wastegate?? Thats a big no-no
Good luck.